Finding the Fourth Proportional to 1,114,616.72, 1,671,988.24 and 356,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114,616.72 : 1,671,988.24 = 356,524.72 : x
2. Step 2: Convert to fraction form
   1,114,616.72/1,671,988.24 = 356,524.72/x
3. Step 3: Cross multiply
   1,114,616.72x = 1,671,988.24 × 356,524.72
4. Step 4: Simplify right side
   1,114,616.72x = 596,105,139,109.29
5. Step 5: Solve for x
   x = 596,105,139,109.29/1,114,616.72
6. Step 6: Final answer
   x = 534,807.28